ISO 15398:2012

INTERNATIONAL ISO
STANDARD 15398
First edition
2012-12-01
Specifications for thermoplastics
covers and frames for manholes and
inspection chambers used in non-
traffic areas
Spécifications pour couvercles et cadres en matériaux
thermoplastiques pour regards et chambres d’inspection utilisés dans
les zones sans circulation
Reference number
©
ISO 2012
© ISO 2012
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ii © ISO 2012 – All rights reserved

Contents Page
Foreword .iv
Introduction .v
1 Scope .1
2 Normative references .1
3 Terms, definitions, symbols and abbreviations .3
3.1 Terms and definitions . 3
3.2 Abbreviations . 3
4 Material .4
4.1 Other materials . 4
4.2 Utilization of non-virgin materials . 4
4.3 UV resistant formulations . 4
4.4 Sealing rings . 5
4.5 Metallic fixings . 5
4.6 Solvent cement . 5
5 General characteristics .5
5.1 General . 5
5.2 Removal of covers from frames . 5
5.3 Appearance . 5
5.4 Colour . 5
6 Geometrical characteristics .5
6.1 Dimensions - general . 5
6.2 Total clearance between cover and frame . 6
6.3 Compatibility of seatings . 6
6.4 Flatness of manhole covers . 6
6.5 Anti .
skid pattern . 6
7 Classification and installation .6
8 Mechanical characteristics .7
9 Physical characteristics .7
10 Performance and durability requirements .8
10.1 General performance . 8
11 Marking of covers and frames .8
11.1 Marking of covers and frames . 8
11.2 Additional documentation . 9
Annex A (normative) Material requirements for materials used in covers and frames .10
Annex B (normative) Impact test on covers and frames .11
Annex C (normative) Skid resistance test .12
Bibliography .15
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International
Standards adopted by the technical committees are circulated to the member bodies for voting.
Publication as an International Standard requires approval by at least 75 % of the member bodies
casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 15398 was prepared by Technical Committee ISO/TC 138, Plastics pipes, fittings and valves for the
transport of fluids, Subcommittee SC 1, Plastics pipes and fittings for soil, waste and drainage (including
land drainage).
iv © ISO 2012 – All rights reserved

Introduction
This International Standard is based on the results of the work being undertaken in ISO/TC 138 “Plastics
pipes, fittings and valves for the transport of fluids”, CEN Committee TC 165 and CEN Committee TC 155.
They are supported by separate standards on test methods and by European Standards for covers and
frames to which references are made throughout the System Standard.
INTERNATIONAL STANDARD ISO 15398:2012(E)
Specifications for thermoplastics covers and frames for
manholes and inspection chambers used in non-traffic areas
1 Scope
This International Standard specifies the definitions and requirements for thermoplastics covers and
frames for inspection chambers and other such pipeline access products installed in light vehicular access
and pedestrian areas and manufactured from unplasticized poly(vinyl chloride) (PVC-U), polypropylene
(PP), polypropylene with mineral modifier (PP-MD) or polyethylene (PE). The products are rated up to B
125 max. and are intended for use either inside or outside buildings including swimming pool areas but
are not intended for use in the carriageway of trafficked areas.
This International Standard is only applicable to those covers and frames where the manufacturer has
clearly stated in the documentation how the frames are installed and assembled to the intended access
product, identifying as necessary the manufacturer and grades of product or riser to which the frame is
intended to fit.
NOTE 1 The cover and frame are normally manufactured by injection moulding.
NOTE 2 Fibre reinforced covers and frames are not covered by this International Standard.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
ISO 580, Plastics piping and ducting systems — Injection-moulded thermoplastics fittings — Methods for
visually assessing the effects of heating
ISO 1043-1, Plastics — Symbols and abbreviated terms — Part 1: Basic polymers and their special
characteristics
ISO 1133-1, Plastics — Determination of the melt mass-flow rate (MFR) and melt volume-flow rate (MVR) of
thermoplastics — Part 1: Standard method
ISO 1183-1, Plastics ― Methods for determining the density of non cellular plastics ― Part 1: Immersion
method, liquid pyknometer method and titration method
ISO 1183-2, Plastics — Methods for determining the density of non-cellular plastics — Part 2: Density
gradient column method
ISO 2507-1, Thermoplastics pipes and fittings — Vicat softening temperature — Part 1: General test method
ISO 3126, Plastics piping systems — Plastics components — Determination of dimensions
ISO 3127, Thermoplastics pipes — Determination of resistance to external blows — Round the-clock method
ISO 3506-1, Mechanical properties of corrosion-resistant stainless steel fastners — Part 1: Bolts, screws and
studs
ISO 3506-2, Mechanical properties of corrosion-resistant stainless steel fasteners — Part 2: Nuts
ISO 4435, Plastics piping systems for non-pressure underground drainage and sewerage — Unplasticized
poly(vinyl chloride) (PVC-U)
ISO 4892-2, Plastics — Methods of exposure to laboratory light sources — Part 2: Xenon-arc lamps
ISO 4892-3, Plastics — Methods of exposure to laboratory light sources — Part 3: Fluorescent UV lamps
ISO 8256:2004, Plastics — Determination of tensile-impact strength
ISO 8772, Plastics piping systems for non-pressure underground drainage and sewerage — Polyethylene (PE)
ISO 8773, Plastics piping systems for non-pressure underground drainage and sewerage — Polypropylene (PP)
ISO 11357-6, Plastics — Differential scanning calorimetry (DSC) — Part 6: Determination of oxidation
induction time (isothermal OIT) and oxidation induction temperature (dynamic OIT)
ISO 13229, Thermoplastics piping systems for non-pressure applications — Unplasticized poly(vinyl chloride)
(PVC-U) pipes and fittings — Determination of the viscosity number and K-value
ISO 13272, Plastics piping systems for non-pressure underground drainage and sewerage — Unplasticized
poly(vinyl chloride) (PVC-U), polypropylene (PP), polypropylene with mineral modifiers (PP-MD) and
polyethylene (PE) — Specifications for manholes and inspection chambers in traffic areas and underground
installations
ISO 21138-1, Plastics piping systems for non-pressure underground drainage and sewerage — Structured-
wall piping systems of unplasticized poly(vinyl chloride) (PVC-U), polypropylene (PP) and polyethylene
(PE) — Part 1: Material specifications and performance criteria for pipes, fittings and system
ISO 21138-2, Plastics piping systems for non-pressure underground drainage and sewerage — Structured-
wall piping systems of unplasticized poly(vinyl chloride) (PVC-U), polypropylene (PP) and polyethylene
(PE) — Part 2: Pipes and fittings with smooth external surface, Type A
ISO 21138-3, Plastics piping systems for non-pressure underground drainage and sewerage — Structured-
wall piping systems of unplasticized poly(vinyl chloride) (PVC-U), polypropylene (PP) and polyethylene
(PE) — Part 3: Pipes and fittings with non-smooth external surface, Type B
EN 124:1994, Gully tops and manhole tops for vehicular and pedestrian areas — Design requirements, type
testing, marking, quality control
EN 681-1, Elastomeric seals — Materials requirements for pipe joint seals used in water and drainage
applications — Part 1: Vulcanized rubber
EN 681-2, Elastomeric seals — Materials requirements for pipe joint seals used in water and drainage
applications — Part 2: Thermoplastic elastomers
EN 681-3, Elastomeric seals — Materials requirements for pipe joint seals used in water and drainage
applications — Part 3: Cellular materials of vulcanized rubber
EN 681-4, Elastomeric seals — Materials requirements for pipe joint seals used in water and drainage
applications — Part 4: Cast polyurethane sealing elements
EN 12164:2011, Copper and copper alloys — Rod for free machining purposes
ENV 12633:2003, Method of determination of unpolished and polished slip/skid resistance value
CEN/TS 14541, Plastics pipes and fittings for non-pressure applications ― Utilization of non-virgin PVC-U,
PP and PE materials
EN 14680, Adhesives for non-pressure thermoplastic piping systems — Specifications
EN 14758-1, Plastics piping systems for non-pressure underground drainage and sewerage — Polypropylene
with mineral modifiers (PP-MD) — Part 1: Specifications for pipes, fittings and the system
EN 14814, Adhesives for pressure thermoplastic piping systems — Specifications
2 © ISO 2012 – All rights reserved

3 Terms, definitions, symbols and abbreviations
For the purposes of this document, the terms, definitions and abbreviations given in ISO 4435, ISO 8772,
ISO 8773, ISO 21138-1, ISO 21138-2, ISO 21138-3, EN 14758-1, ISO 13272, ISO 1043-1 and the following apply.
3.1 Terms and definitions
3.1.1
Inspection chamber
drainage or sewerage fitting used to connect drainage or sewerage installations and/or to change the
direction of drainage or sewerage runs, which terminates at ground level
NOTE 1 It can be supplied either with an integral riser or a separate a riser shaft in both cases having a 200 mm
minimum outer diameter and an inner diameter of less than 800 mm. For non-circular chambers the minimum
clear opening should be 200 mm with a maximum opening width of 800 mm
NOTE 2 The opening at ground level permits the introduction of cleaning, inspection and test equipment and
the removal of debris but does not provide access for personnel.
3.1.2
riser shaft
usually circular structure providing a vertical conduit between the base unit and the near ground level
NOTE The riser shaft can be supplied either as a separate component for site jointing to the base unit, or
integrally formed with the base unit by the manufacturer.
3.1.3
near-surface components
components which, where provided, connect to the top of the riser shaft and provide a seating for the
cover and its frame
3.1.4
telescopic part
part of the assembly that allows accommodation of settlement that might occur after installation and
allows adjustment of the height of the chamber
3.1.5
cover frame
component that provides a stable support for the cover on its top surface and on its bottom surface
attaches to the riser or near surface components or alternatively is imbedded in concrete as required by
the installation details supplied by the manufacturer of the chamber or manhole
3.1.6
clear opening
CO
diameter of the largest circle that can be inscribed in the clear area of the frame
NOTE 1 Expressed in mm.
NOTE 2 See EN 124.
3.1.7
reformulated material
recyclable / reprocessable material that has been reformulated, by the use of additives and processing
techniques, to meet an agreed specification
NOTE Typically the additives used would be stabilizers, pigments, etc; the reformulated material taking the
form of homogeneous pellets, granules, powder, etc. with the produced batch having consistent physical properties.
3.2 Abbreviations
DN/ID nominal size, inside diameter related
DN/OD nominal size, outside diameter related
PVC-U unplasticized poly(vinyl chloride)
PE polyethylene
PP polypropylene
PP-MD polypropylene with mineral modifiers
4 Material
A material fulfilling the requirements in one of the standards listed in Table 1 may be used for
manufacturing covers and frames without additional material requirements.
Table 1 — Standard materials and corresponding pipe standards
Standard material Corresponding pipe standard
Unplasticized poly(vinyl chloride) (PVC-U) ISO 4435, ISO 21138-2, ISO 21138-3 & ISO 13272
Polypropylene (PP) ISO 8773, ISO 21138-2, ISO 21138-3 & ISO 13272
Polyethylene (PE) ISO 8772, ISO 21138-2, ISO 21138-3 & ISO 13272
Polypropylene with mineral modifiers (PP-MD) EN 14758-1 & ISO 13272
4.1 Other materials
When a material not fulfilling the material requirements of the standards listed in Table 1 is used
...